Toggle Switches

Toggle switches are among the most basic and most common of all electronic components, the switch moves contacts that either provide a path for current to flow through or moves those contacts in such a way that the path is cut. The toggle switches most people will be familiar with are light switches.

How Does a Toggle Switch Function?
Toggle switches may vary a bit in function from one to the next depending upon their configurations. However, the basics are the same.
When the actuator (the toggle itself) is moved, the armature in the switch moves the contact into position either energizing the circuit or de-energizing it. Once the switch is moved from one position to the other, it typically stays that way. There are also momentary switches, which energize or de-energize a circuit for as long as they are actuated and then go back to their normal state once the actuator is released. This is accomplished via a spring mechanism that exerts a force on the armature from the inside.

Contact Configuration of a Toggle Switch
  • A single pole single throw (SPST) switch is the simplest and most common type of toggle switch. These switches allow simple on and off operation for a single circuit. Most light switches are SPST switches.
  • Single pole double throw (SPDT) switches can be used to change where a voltage is directed. The double throw means that the switch can be used to energize two different circuits - one at a time - from a single source of energy.
  • Double pole single throw (DPST) switches allow an operation that is very similar to having two SPST switches hooked together in one device. The switch can turn two circuits on and off. These are very convenient when more than one device needs to be controlled with the same switch.
  • Double pole double throw (DPDT) switches allow two different circuits to be served by the same pole. These are used in applications where a circuit may need to have changing voltages applied to connected devices.

There are also switches with the designation CO, such as SPCO (single pole changeover) switches. These have an off position in the middle of the switch and can be used to energize or de-energize two different circuits attached to the device.

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Description Price Contact Configuration Switch Operation Contact Current Rating Mounting Type Terminal Type IP Rating Illuminated Panel Cut Out Width Panel Cut Out Height Panel Cut Out Diameter Actuator Length Actuator Material Voltage Rating Contact Resistance
RS庫存編號 879-8323
製造零件編號2M1-DP1-T1-B1-M1QE
HK$41.23
單位
Double Pole Single Throw (DPST) Latching 5 A Panel Mount Solder Lug - - - - 6.35 (1/4 Bushing) mm, 11.91 (15/32 Bushing) mm 10.4mm Brass 250V ac 10mΩ
RS庫存編號 354-2822
製造零件編號G-22AV
HK$37.43
單位
Double Pole Double Throw (DPDT) Latching 100 mA @ 28 V ac/dc PCB Through Hole - - - - - 3.8mm Glass Fibre Reinforced PA - 80mΩ
RS庫存編號 614-6348
製造零件編號647H/2-5RS
BrandAPEM
HK$76.05
單位
Double Pole Double Throw (DPDT) (On)-Off-(On) 5 A @ 25 V dc Panel Mount Solder - - - - 12.5mm 40mm Nickel Plated Brass - 10mΩ
RS庫存編號 266-1534
製造零件編號641H/2
BrandAPEM
HK$61.56
單位
Double Pole Single Throw (DPST) Latching 10 A@ 24 V dc Panel Mount Solder, Tab - - - - - 17.5mm Nickel Plated Brass - 10mΩ
RS庫存編號 805-6824
製造零件編號637h/2-5
BrandApem
HK$64.54
單位
- (On)-Off-(On) 5 A@ 25 V dc Panel Mount Solder Lug - - - - 12.2mm 40mm Nickel Plated Brass - 10mΩ
RS庫存編號 762-5457
製造零件編號ET230N10-Z
HK$72.45
單位
Double Pole Double Throw (DPDT) Latching 25 A@ 250 V ac, 30 A@ 125 V ac Panel Mount Screw - - - - - 17mm - - 20mΩ
RS庫存編號 394-453
BrandRS PRO
HK$40.59
單位
Double Pole Double Throw (DPDT) Latching 5 A @ 28 V dc Panel Mount Solder - - - - 6.35mm 21mm Chromium Plated Brass - 10mΩ
RS庫存編號 861-0295
製造零件編號C3922BAAAA
HK$54.22
單位
Single Pole Double Throw (SPDT) (On)-Off-(On) 20 A Panel Mount Tab - - - - 12.7mm 17.5mm Metal - -
RS庫存編號 879-8354
製造零件編號2M1-SP3-T1-B1-M2QE
HK$40.52
單位
Single Pole Single Throw (SPST) On-Off-On 5 A Panel Mount Pc Pin - - - - 6.35 (1/4 Bushing) mm, 11.91 (15/32 Bushing) mm 10.4mm Brass 250V ac 10mΩ
RS庫存編號 881-1448
製造零件編號IM254-73
HK$199.05
單位
Four Pole Double Throw (4PDT) On-Off-On 15 A Panel Mount Screw - - - - 12.7mm 17.44mm - 250V ac -
RS庫存編號 164-8692
製造零件編號A4TP15W04
HK$523.48
個 (以毎盒:50)
單位
Four Pole Double Throw (4PDT) On-Off-On 20 A @ 250 V ac Panel Mount Solder, Tab IP67 - - - - 17.5mm Brass - 10mΩ
RS庫存編號 354-3241
製造零件編號S-822
HK$214.78
單位
Double Pole Double Throw (DPDT) Latching 30 A@ 250 V ac, 30 A@ 30 V dc Panel Mount Screw - - - - - 22mm Brass - 10mΩ
RS庫存編號 664-244
製造零件編號TL36W0050
BrandAPEM
HK$27.22
單位
SP On-On 400 mA @ 20 V PCB Through Hole - - - - - 5.3mm Brass - 20mΩ
RS庫存編號 692-5309
製造零件編號5237CDB
BrandAPEM
HK$49.00
單位
Single Pole Single Throw (SPST) (On)-Off-(On) 400 mA @ 20 V PCB Through Hole - - - - - - Brass - 10mΩ
RS庫存編號 350-226
製造零件編號C1720HOAAG
HK$30.68
單位
Single Pole Double Throw (SPDT) On-Off-On 20 A @ 250 V ac Panel Mount Solder, Tab IP40 - - - 12.7mm 16.4mm PC - 100mΩ
RS庫存編號 710-9561
製造零件編號5-1825137-3
HK$52.84
單位
Single Pole Single Throw (SPST) (On)-Off-On 400 mA @ 20 V Panel Mount Through Hole - - - - - 17.5mm Phenolic - 10mΩ
RS庫存編號 879-8326
製造零件編號2M1-DP1-T1-B1-M2QE
HK$46.01
單位
Double Pole Single Throw (DPST) Latching 5 A Panel Mount Pc Pin - - - - 6.35 (1/4 Bushing) mm, 11.91 (15/32 Bushing) mm 10.4mm Brass 250V ac 10mΩ
RS庫存編號 879-8294
製造零件編號2GL57-73-XA
HK$52.73
單位
Double Pole Double Throw (DPDT) Latching 15 A Panel Mount Quick Connect, Solder Tag - - - - 12.7mm 17.44mm Brass 250V ac -
RS庫存編號 692-5239
製造零件編號5659ADBK3V
BrandAPEM
HK$122.41
單位
Three Pole Double Throw (3PDT) Locking lever, On-Off-On 4 A @ 30 V dc Panel Mount Solder - - - - 6.5mm 15.1mm Nickel Plated Brass - 10mΩ
RS庫存編號 163-8460
製造零件編號AWTE1504
HK$289.47
個 (以毎盒:100)
單位
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